736 BORAGINACEAE 



41. M. campanulata A. Nels. Stem pale, 3 dm. high or more, glabrous; 

 basal leaves long-pet ioled; blades glabrous, 8-12 cm. long, oblong, tapering at 

 both ends; stem-leaves oblanceolate; pedicels and calyx glabrous; calyx-lobes 

 broadly triangular, one-fourth as long as the tube; corolla 18-20 mm. long; tube 

 equalling the throat and limb. Meadows: Ida. Jl. 



42. M. alpina (Torr.) Don. Stems ascending, glabrous, 1-2 dm. high; 

 lower leaves spatulate or oblanceolate, obtuse, tapering into a winged petiole, 

 dark green, 3-5 cm. long, the upper broadly lanceolate, sessile; pedicels very 

 short, often sparingly strigillose; calyx-lobes oblong, obtuse, 2-3 mm. long; 

 corolla dark blue, about 7 mm. long; tube nearly equalling the throat and limb. 

 M. obtusiloba Rydb. High mountains: Colo. — N.M. Subalp. — Alp. 



43. M. Tweedyi Rydb. Stems decumbent or rarely ascending, often less 

 than 1 dm. high; basal leaves petioled, somewhat fleshy, 2-5 cm. long, with 

 oblanceolate blades; stem-leaves 1-2 cm. long, oblong-lanceolate; calyx-lobes 

 linear-lanceolate, ciliate on the margins; corolla 8-10 mm. long; limb and throat 

 fully as long as the tube. High mountains: Colo. — Wyo. Mont. — Alp. My-Au. 



44. M. perplexa Rydb. Stem about 3 dm. high, glabrous; basal leaves 

 spatulate, 4-10 cm. long, petioled; stem-leaves sessile, the lower oblanceolate, 

 the upper ovate; pedicels minutely hispid-strigose, the hairs with pustulate bases; 

 corolla blue, about 12 mm. long; tube equalling the throat and limb, the latter 

 7-8 mm. wide. High mountains: Colo. Alp. Jl. 



45. M. humilis Rydb. Stem 1-2 dm. high, ascending or decumbent, gla- 

 brous; basal leaves petioled, 3-8 cm. long; blades thick, elliptic to ovate; stem- 

 leaves sessile, elliptic or ovate, rarely oblong, 2-4 cm. long; pedicels with scattered 

 large pustules; corolla 7-8 mm. long; tube slightly shorter than the limb and 

 throat. Stony slopes: Wyo. Subalp. My-Je. 



46. M. brevistyla S. Wats. Stem 1-3 dm. high, glabrous or slightly strigose; 

 leaves firm, strigose above, oblong, or the lower oblanceolate; pedicels strigose; 

 calyx-lobes lanceolate, hirsute; corolla 7-8 mm. long; tube shorter than the limb 

 and throat. High mountains: Utah. Submont. — Subalp. Ap-Je. 



47. M. cana Rydb. Stems about 1 dm. high, strigose; leaves hnear or 

 linear-oblanceolate, grayish strigose on both sides; pedicels and calyx strigose; 

 calyx-lobes linear-lanceolate, acute, about 2 mm. long, ciliate on the margins; 

 corolla blue, about 8 mm. long; tube as long as the throat and the limb, the latter 

 about 3 mm. wide. M. canescens Rydb., not Kaulf. High mountains: Colo. 

 Subalp. — Alp. Jl. 



15. MYOSOTIS (Rupp.) L. Forget-mk-not. 



Annual, biennial, or perennial caulescent herbs. Leaves alternate, entire, 

 narrow. Flowers perfect, regular, in 1-sided racemes. Calyx persistent, 5- 

 lobed; lobes erect or spreading. Corolla salverform, blue, pink, or white, often 

 with an eye; tube short; throat with transverse crests; lobes rounded, convolute. 

 Stamens included. Nutlets small, ovoid, smooth, attached by the very base to 

 the flat receptacle. 



Perennials, tufted; corolla 4-6 mm. wide. 1. A/, alpestris. 



Annuals; corolla less than 2 ram. wide. 



Stem tall, 3-5 dm. high; caly.x nodding in fruit, 5-7 mm. long; nutlets about 2 mm. 

 long. 2. M. macrosperma. 



Stem lower, 1.5-3 dm. high; calyx not nodding in fruiting, less than 5 mm. long; nut- 

 lets about 1.5 mm. long. . • 3. M. virginica. 



1. M. alpestris Schmidt. Stem 1-3 dm. high, hirsute; basal leaves spatu- 

 late or oblance(jlate, 3-7 cm. long, hirsute; stem-leaves linear-lanceolate; calyx 

 lobes lanceolate, erect in fruit; corolla bright blue, 4-6 mm. wide. Wet places 

 in the mountains: Alta. — Colo. — -Alaska; Eurasia. Mont. — Subalp. My-Au. 



2. M. macrosperma Engclm. Stem 3-5 dm. high, hirsute with ascending 

 hairs, leafy; Ijasul leaves oblanceolate, 2-8 cm. long, sparingly hirsute; stern- 

 leaves lanceolate or oblong; racemes 1-2 dm. long; calyx-lobes 2.5 mm., in fruit 

 6-7 mm. long; corolla light blue or white, 3 mm. long. River banks and open 

 woods: D.C.^Fla. — Tex. — Calif. — B.C. — Ida. Plain — Submont. Ap-Je. 



